The Emacs Lisp Python Environment in Emacs
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 Elpy is an Emacs package that brings powerful Python editing to
 Emacs. It combines a number of existing Emacs packages, and is
 written in Emacs Lisp as well as Python.
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 Features:
   * Navigation by code indentation and code definition.
   * Move the current region as a code block.
   * Treat a working tree as a coherent project; search for files,
     code, or text within the project.
   * Interact with Python interpreters and test runners.
   * Browse the Python built-in documentation.
   * Refactor code and symbols.